In The Laws of Simplicity John Maeda posits, “The simplest way to achieve simplicity is through thoughtful reduction. When in doubt, just remove. But be careful of what you remove.” The final warning is important. Removing things often leads to simplicity merely because the user has fewer items to process. But removing visual cues that help the user mentally process the interface — such as graphical elements that group items, that differentiate buttons and labels and that make things stand out — could do exactly the opposite by giving the user more work to do. So, rather than guide the design by style, guide it by principle.
~ Dmitry Fadeyev, Authentic Design